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Optically-driven organic nano-step actuator for reconfigurable photonic circuits
Ji-Zhe Zhang1,2,3, Xin-Biao Xu1,2,3, Yanjun Gong4
1Laboratory of Quantum Information, University of Science and Technology of China, Hefei, PR China.
Nature Communications
|September 2, 2025
Summary
Researchers developed a programmable organic micro-actuator for precise on-chip manipulation. This laser-controlled device enables fine-tuning of photonic circuits and adaptive system development.
Area of Science:
- Photonics
- Micro-robotics
- Materials Science
Background:
- Extending photonic chip capabilities requires advanced assembly and reconfiguration methods.
- Top-down fabrication approaches necessitate precise post-fabrication manipulation techniques.
Purpose of the Study:
- To demonstrate a fully-programmable organic micro-actuator for precise on-chip microstructure manipulation.
- To enable post-fabrication assembly and reconfiguration of photonic circuits.
Main Methods:
- Development of a laser-controlled organic micro-actuator.
- Utilizing a 30 nm motion step size for precise movement.
- Application of the micro-actuator for microcavity fine-tuning.
Main Results:
- The micro-actuator demonstrated precise manipulation of on-chip microstructures.
- Achieved a 30 nm motion step size and capability to traverse substrates and overcome obstacles.
- Successfully shifted microcavity resonance by three linewidths without quality factor degradation.
Conclusions:
- The optically-driven micro-actuator provides a novel approach for assembling and reconfiguring photonic circuits.
- This technology paves the way for adaptive and multifunctional photonic systems.
- Enables precise post-fabrication adjustments for enhanced photonic device performance.
